Linux V7 Essentials

What should I do if my video will not play?

There are many things that can affect the quality of your video so we have put together these instructions to help you review all the things that need to be tested in order to trouble-shoot video quality.

The first thing we want to assure you is that we have done everything possible to make sure that our videos will play well.  Our videos are hosted in the cloud by Akamai.  Akamai has servers around the world to make sure that your videos are sent from the server that is closest to you.  By hosting our videos with Akamai we make sure that you receive the highest video quality. If you are experiencing video buffering or freezing at home or at the office there are a number of things you can do to help us troubleshoot.

  • Buffering: We provide you with three (3) speed choices that you can select when watching a video.  If the video is buffering then the first thing you want to click on a slower speed option found at the bottom of the video window. Try clicking on Medium and Low and see if that allows the video to play without buffering. If it does not, please read through the rest of this FAQ and follow the steps outlined below.
  • Video will not play: In order to play our videos, you have to have Adobe Flash Player installed. If you click on the video and nothing happens, then you do not have Adobe Flash Player installed.  Click on this link to download and install it.
    • If you have Adobe Flash Player installed and your video is not playing, complete the following steps:
      • Go to your course page, select a video, and click play.
      • Once the video begins playing, place your mouse over the video and right click.
      • You will see the several links and the last link has the words “About Adobe Flasher Player xx.xx.xx” (version # you have).
      • Click here , where you will see your version and what is the latest version. You need to have the latest version installed.
      • If you do not have Adobe Flash Player, click here to download and install it.
  • Popup Blockers: Please check to make sure that your pop-up blocker is turned off when you go to our website. This will prevent the video window from opening.
  • Your Connection Speed: Internet speed needs to be 2.0 Mbps upload and download to successfully watch the videos.  You will want to check and see if your connection speed is 2.0 Mbps or higher.  You can do this by clicking on this link and running a speed test.
  • Jitter and Packet Loss: Your Jitter rate lets us know if your connection speed is consistent while your Packet Loss rate lets us know if your internet connection could be losing pieces of the video.
    • Go to www.pingtest.net to determine if there is any Jitter or Packet Loss on your connection.
    • This is measured by a letter scale with A being the best.
      • If your Packet Loss is below a B, your connection is losing pieces of the video and causing the video to skip.
      • If your Jitter is below a B, your connection speed is very inconsistent and may be changing while you are watching the video which will result in buffering issues.
      • If either of these is the case you will need to contact your internet provider.
  • Ports: You will need to have ports 1935, 443 and 80 open. You can run a port test at this link.
    • If you are watching from work and those ports are not open, check with your IT department.
  • Shared Internet Connection: If you are on a shared internet connection, test playing videos during non-peak hours when usage by others on your network is low.
  • Reset Your Browser: If you've tried all the previous steps, your browser may be retaining data that needs to be deleted, and this requires a reset. If you are using Chrome, use the instructions in this link to reset your browser. If you are using Internet Explorer (IE) you may need to reset it. You can do this by clicking on the cog icon on the top right of your page. Then click on tools, internet options, advanced and reset. If you are using Firefox, use the instructions in this link to reset your browser.
  • Other things to check:
    • At home or at work, test using different browsers and computers to see if you get the same result.
      • Make sure you have the latest version of the browser you are using.
    • If you are using Internet Explorer (IE) you may need to reset it. You can do this by clicking on the cog icon on the top right of your page. Then click on tools, internet options, advanced and reset.
    • Try from a different location using a different network.
    • If you are on a wireless connection try a wired solution.
    • If you are on a home network:
      • Test playing the videos when you are the only user on the network.
      • Try by-passing your router to eliminate it as the point of failure. A direct plug from your ISP to your computer will take care of this and will make sure that neither your router nor other users are affecting your connection.
    • If you are running Firefox, you can check your plugins here: https://www.mozilla.org/en-US/plugincheck/
  • Make sure you do not have any other programs open. File sharing and peer to peer sharing programs, even when limited to low bandwidth, can make it almost impossible to stream properly.
  • Tracking Progress on Mobile Devices: The GogoTraining site is designed to use the native player found in your browser. If you are taking your course on a mobile device and want to make sure your progress is tracked, then you will need to play the videos from the native player that is in your browser. Do not download any third party apps to play the videos as they do not allow your progress to be recorded. If you have installed a third party app and want to receive a Course Completion Certificate, then you will need to uninstall the 3rd party app or see if the app has the ability for you to disable it for certain sites.
  • Submitting Debugging Information If you have tried everything else and still are having trouble viewing the videos, you can visit this page where you can help us debug your particular setup by following the instructions on the page and submit the debugging information to us.
Video Title
Length
00: Course Introduction: Linux V7 Essentials
7 min
01: Introduction to Linux
17 min
02: Installation
14 min
03: Linux Usage Basics
15 min
04: Running Linux Commands
23 min
05: Exploring the Filesystem Part 1
18 min
06: Exploring the Filesystem Part 2
16 min
07: Introduction to the bash Shell
18 min
08: Standard Input/Output and Pipes
17 min
09: Introduction to Users and Groups
12 min
10: Text Processing Part 1
14 min
11: Text Processing Part 2
19 min
12: Basic System Configuration
13 min
13: The vi Editor Part 1
15 min
14: The vi Editor Part 2
13 min
15: Configuring the bash Shell
11 min
16: Shell Programming Part 1
11 min
17: Shell Programming Part 2
17 min
18: Shell Programming Part 3
19 min
19: Network Applications Part 1
13 min
20: Network Applications Part 2
11 min
21: Advanced Users and Groups Part 1
13 min
22: Advanced Users and Groups Part 2
18 min
23: Finding Things
17 min
24: Linux Processes Part 1
11 min
25: Linux Processes Part 2
20 min
26: Advanced File System Part 1
16 min
27: Advanced File System Part 2
11 min
28: The Next Steps
4 min
Total:
7 hrs 3 mins

James Lee

James Lee is a hacker and open-source advocate based in Illinois. He holds a master's degree from Northwestern University, and he can often be seen rooting for the Wildcats during football season. As founder of Onsight, Lee has worked as a programmer, trainer, manager, writer, and open-source advocate. Lee authored Beginning Perl, Second Edition published by Apress and coauthored Hacking Linux Exposed, Second Edition, as well as Open Source Web Development with LAMP. He enjoys hacking in Perl and Python and has written programming articles for the Linux Journal. Lee also enjoys developing software for the Web, reading, traveling and, most of all, snowboarding with his kids who are old enough now to understand why dad's favorite animals are penguins and camels and why dad laughs at Monty Python's Flying Circus.

System Requirements

Hardware:

  • Windows, Mac OS X, or Linux
  • Internet access

Software:

  • Red Hat Enterprise Linux 7 OR 
  • Free Linux - CentOS (http://www.centos.org/), an almost exact copy of RedHat

Course Materials

When you purchase this course you will receive access to these materials.

  • Student Guide
  • Exercise Guide
  • Exercise Files
  • Exercise Solutions Guide
  • Lab Setup Guide

Course Links

These links are activated when you purchase this course.

  • Course Survey
  • Cent OS

Transcript

This course comes with a Transcript that tracks your progress. You can use your transcript to view and monitor your progress and when you complete the course, you can print or email the transcript, or print a course completion certificate.

Certificate of Completion

You will be awarded a Certificate of Completion when you finish this course. You will be able to print or email the certificate and share your accomplishment with everyone.

How to Take Your Exam

This class, in addition to Linux V7 System Administration, prepares you to sit for the Certified System Administrator exam given by Red Hat (EX200). For more information about the exam requirements or locations and pricing, click here.
 
GogoTraining's Linux courses are written by subject matter experts with years of exerience working with Linux.  They have all achieved Linux Certifications and have written these courses so that they will fully prepare students for the exams using Red Hat Linux..